prepared as a 92:8 mixture of E and Z isomers in 74% yield from d-camphor, methoxyamine hydrochloride and NaOAc in ethanol. Reaction of oxime 1 with Na2PdCl4 in a 2:1 ratio in MeOH at rt provided the coordination complex PdCl2(HL)2 (2) in 67% yield. Cyclopalladation of oxime 1 using Pd(OAc)2 in acetic acid at 80 °C followed by treatment with LiCl furnished the chloro-bridged dimeric cyclopalladated complex
d -
樟脑ø甲基
肟(HL,1)制备为92:8混合物Ë和Ž在从产率74%的异构体d -
樟脑,
甲氧基胺盐酸盐和NaOAc
乙醇。在室温下,
肟1与Na 2 PdCl 4在MeOH中以2:1的比例反应,以67%的收率得到配位络合物PdCl 2(HL)2(2)。在80°C的
乙酸中,使用Pd(OAc)2对
肟1进行环
钯缩合,然后用LiCl处理,得到了
氯桥联的二聚环
钯配合物[μ-ClPdL] 2,3,产率为66%。化合物3以98%的产率转化为单核PPh 3加合物4。的新络合物提出的结构2 - 4经确认1 H,13 C 1 1个H},
DEPT和2D NMR谱。配合物3的X射线晶体研究揭示了两个环
钯配体的抗几何结构以及(sp 3)C-Pd键的存在。